Mattress



FIG. 1 is a front, top perspective view of an embodiment of a mattressshowing my new design, the opposite view being a mirror image thereof;and,

FIG. 2 is another front, top perspective view of the mattress shown inFIG. 1, the only difference being the mattress and a portion of themattress foundation are in an articulated position.

The broken lines are environmental and form no part of the claimeddesign.

CLAIM The ornamental design for a mattress, as shown and described.